Olaplex No.4P Blonde Enhancing Toning Shampoo

A highly concentrated purple shampoo designed to gently cleanse while neutralising unwanted yellow and brassy tones. Formulated with Olaplex's patented bond-building technology, No.4P helps maintain brighter, cooler-looking blonde hair while supporting strength, shine, and manageability.

Suitable for blonde, highlighted, grey, and naturally silver hair.

Why I Recommend It

This is one of my go-to purple shampoos for blondes who want to keep their colour looking fresh between salon visits. The highly concentrated formula allows you to customise the level of toning depending on how long it's left on the hair.

I often recommend No.4P when blonde hair starts to look yellow, warm, or brassy. It's particularly effective for maintaining cooler blonde tones and helping extend the life of your salon colour.

Like all Olaplex shampoos, a little goes a long way, so one bottle tends to last much longer than many other toning shampoos.

Best For

• Blonde hair

• Highlighted hair

• Grey or silver hair

• Hair with unwanted yellow or brassy tones

• Anyone wanting to maintain a cooler blonde between salon visits

How To Use

Apply to wet hair and lather thoroughly. Leave on for 1-3 minutes for gentle toning or longer for more intense neutralisation. Rinse thoroughly and follow with conditioner.

For best results, alternate with Olaplex No.4 Bond Maintenance Shampoo.